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An FM signal at 10.7 MHz. IF needs to be digitized for demodulation in a digital domain. If the bandwidth of this signal is 200 kHz, the maximum usable sampling frequency is
1. 200 kHz
2. 600 kHz
3. 400 kHz
4. 800 kHz

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Best answer
Correct Answer - Option 3 : 400 kHz

Concept:

The maximum usable frequency is defined as:

2 × Bandwidth. 

Given:

Bandwidth = 200 kHz

Analysis:

Maximum usable frequency = 2 × 200 = 400 kHz

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